Lawn sprinkler



. a hose. The top wall Patented Oct. 13,1931

* UNITE-o STA I WILLIAM'STEININGER, or BEBWYN, ILLINOIS, Assreivon moarmer MANUF oQ roame- CQMPANY OF on roaoo, ILLINOIS; a coaroaarro v:

LAWN srainxnna Application me J111ys27,

The present invention relates more particularly to that-type of lawn sprinklers in which there is provided a rotatable head suit-. ably mounted upon a supporting base. An

example of this type'of-sprinkler is shown in an application-filedby me in'theUnite'd tates Patent Ofiice anuary 1-2, 1929,

Nasaarrs. I An object of my'invention isto provide a new and improved lawn sprinkler which I will 'be'sirnple in construction,- inexpensive to and ru'gmanufacture; efficient in operation ged; V Afurtherobject is to provide vice which will havea rotatable nozzle with means for optionally-locking the nozzle against rotation, which locking meanswill be simple and eflicient. i 1

Various other objects'andfadvantages will become apparent as the The invention consistsin the features of novelty hereinafter described, illustrated in the accompanying-drawing and particularly pointed out in the claims atth'e end of this specification. I V p Figure 1 is a view in: side elevation of a lawn sprinkler embodying my invention;

Figure 2is'aview in verticalsection upon an enlarged scale through the central portion of the sprinkler; parts omitted; H

Figure 3 is a view'in cross section-on line 3-3 of Fig. 2; I Figure 4 is a view invertical" section'on line 44= of Fig. .1. As shown the sprinkler is provided with a suitable base 10, the. lower part ofwhich may be in the form ofrunners, united to a chambored portion 11 to which water will be admi tte d at a coupling of the. chambered'portion 11 of the base is provided with a screw threaded opening 13 adapted to receive a correspondinvgly threaded lower end'of atubular 50- post and-the hollow stem post-1 1. VVi-thin the tubular post 14 is revolubly mounted a hollow stern15. the interior of the pest labeing preferably chambered, as at llflto reduce the friction between said 15. The stem 15 is formed from a straight section of pipe of description proceeds.

1 being 7 12h'avingconnection with 1929. Se riaINo. 381,455.

substantially uniform diameter andadjacent' the lower end'of the stem 15 thereis' provided @bearing ring-1-6 that'is seated within aperipheral groove in placeby the flange 17 formed atlthe' end of the stem. Theupper portion of thestem 15 is screw-threaded, as shown at 18 and the screw-threadedupper end ofthe-stem 15 ening formedinthe central or hub portion 20 of the hollow sprinklerhead.

T Between the hubQ O of the sprinkler head and the vtop of the tubular; post 1 1 is placed an adjustable collarlor nut 21 that is interiorly threaded to engage the threaded upper POI'. tion oftheholl'ow 'stem 15. As shown, the

periphery offthe collar or nut 21 isxfo'rmed in the stem 15 and is held gages with a correspondinglythreaded openwith teeth or serrations 22 adaptedto be engaged by'the inwardly: extending portions 23 of the lingers 2 lrthat-project upwardly from a band or sleeve :25 that encircles the tubular post 14.1 The band or sleeve 25 is movable axially of the post but is prevented from turning thereon fixed to and projecting from they post and enteringa vertical slot27. inftheiban'd 25. The

' fingers 24: may be of any suitable number and by-means: of a pin '26: 7 Y

are preferably formed integral with andoff set from the'body. of-the band 25,:a-s shown; In the preferred embodiment of m'y'invention shown inthe drawings, the collar or nut. 21 performs several functions,-:i. .e.,;i't serves asa nut lock'to effect a secure engagement of the sprinkler'head with the-upper end of the stem 15'; it serves also as the upper bearing for the sprinkler head'upon the top ofthe tubular post -14,and the toothedlperiphery 1 of thecollar' 21 cooperates with the locking sleeve in holdingthespnnkler headagainst rotation when desired. a.

' In order to assemblethe parts-as shown, the tubular :post 14: -..(before bein gconnected to. the base and with bearing, ring 16 contacts with, or approxithe lockingring25 in posi-, v tionon the post) will have the hollow stem matelv ,contacts with'the lower end of the post f 1 1. The collar 21' will then be screwed down upon the threaded portion 18 of the stem 15" g 'i until the lower face of the sleeve bearslig'htly against the upper end of the post l t. The threaded portion 18 of the stem 15 extend ing above the collar 21 will next be screwed into the hub 20 of the sprinkler head and the collar 21 will be turned to tightly it against the lower end of the hub 20 and thus securely lock the sprinkler head upon the upper end of the stem 15. Not only does the collar 21 afford a secure locking engagement of the sprinkler head with the stemlo, but by means of the collar, the accurate vertical positioning of the stem 15 within the post 14 can be effected. When the parts have thus been assembled, the lower threaded end of the post l l will be screwed into the chambered upper portion 11 of the base 10.

When it is desired to lock the sprinkler head against rotationdue to the impact of water passing through the sprinkler the band or sleeve 25' will be .lllOYGtl from the position shown in Fig. 1 of the drawing axially in an upward direction until the inturned portions 23 of the fingers 24L with the toothed periphery of the collar 21, as shown in Figs. 2 and 3, and the slight resilience of the fingers 24 will retain the fingers in engagement with the collar. When, however, the locking band 25 is in the position shown in Fig. 1, the sprinkler head and collar 21 will be free to revolve upon the top of the post 1e.

From the depending hub or central portion 20 of the sprinkler head extend laterally the usual hollow arms 30, each having at its end an upturned portion 32 that is peripherally threaded, as at 33, to'receive the inwardly threaded retaining nut 3& that serves to hold in place the stem 35 of the corresponding spray nozzle 36. The stem 35 of each of the spray nozzles 36 is formed with a periphtral rib or flange 37, above which extends the inner flange 38 of the corresponding retaining nut 34.

Between the rib or flange 37 and the end of the upturned portion 32 of the sprinkler arm 30 is placed a suitable packing 39, to guard against leakage. To further aid in preventing leakage of water about the stems .35 of the spray nozzles 36, each of these stems 35 is formed with a peripheral groove 10 to receive suitable packing 41 that will bear against the interior wall of the upturned portion 32 of the arm 30. The stems of the spray nozzles 36 may be turned or adjusted within the upturned ends 32 of the arms 30 in order to modify the speed of revolution of the sprinkler head. By providing the stems 35 of'the spray nozzle 36 with the peripheral recesses 40 and packing 41, all danger of leakage of water around the stems of the spray nozzles is avoided.

My invention provides an extremely simple and effective form of lawn sprinkler, the parts of which are easily and cheaply manufact red and can be readily assembled.

having-a corrugated annular portion, and

means for locking said sprinkler head comprising a band encircling said post and movable axially thereof, said band being provided with a finger engageable with saidcorrugated portion to lock the sprinkler head against rotation.

2. A sprinkler of the class described embodying the combination with a base, of a tubular post extending from said base, a hollow stem rotatably mounted in said post and having a corrugated annular portion, and means for locking said sprinkler head comprising a band encircling said post and movable axially thereof but fixed against rotation, said hand being provided at its upper end with a plurality of fingers engageable with said corrugated portion to lock the sprinkler head against rotation.

3. A sprinkler of the class described embodying the combination with a base, of a tubular post extending upwardly from said base, a hollow stem. rotatably mounted in said post and having a hearing at its lower end, a sprinkler head connected to the upper end of said stem, an adjustable collar mounted upon said stem between the sprinkler head and the top of said post, said collar having a toothed periphery, a band beneath said collar encircling said post and movable axially thereof, said band being provided with a finger engageable with said collar to lock the collar andsprinkler head against rotation.

4. A device as defined in claim 3 wherein said adjustable collar serves as a bearing for said stem.

5. In a device of the class described, a base, a tubular post extending from said base, a hollow stem rotatably mounted in said post and carrying adjacent its upper end a sprinkler head, an adjustable annular member on said stem and bearing against the upper portion of said post, said annular member having corrugations on its outer periphery, and an annular member longitudinally slidable on said post and engageable with said corrugations for locking said stem against rotation.

WILLIAM STEININGER. 

